.header{
    width: 100%;
    height:80px ;
    position: fixed;
    z-index: 99;
    background-color: #fff;
    transition: all .4s cubic-bezier(.215, .61, .355, 1) 0s;
}
.header.mini{
    height: 5pc;
    box-shadow: 0 2px 6px rgba(0,0,0,.1);
}
.header-c{
    position: relative;
    width: 1200px;
    height: 100%;
    margin: 0 auto;
}
.header-c .logo {
    display: inline-block;
    width: 110px;
    height: 100%;
}
.header-c .logo a{
    display: block;
    width: 100%;
    height: 100%;
    background: url('../img/logo.png') no-repeat center;
}
.header-c .nav {
    position: absolute;
    right: 0;
    top: 0;
    display: inline-block;
    line-height: 80px;
}
.header-c .m-nav-icon {
    display: none;
}
.header-c .nav .nav-item {
    position: relative;
    display: inline-block;
    width: 72px;
    height: 40px;
    font-size: 15px;
    color: #505050;
    line-height: 40px;
    text-align: center;
    margin-left: 60px;
    box-sizing: border-box;
    /* overflow: hidden; */
}
.header-c .nav .nav-item::after{
    content: '';
    display: block;
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: #0F73D8;
    transition: all ease .2s;
}
/* .header-c .nav .nav-item:last-child {
    text-align: right;
} */
.header-c .nav .nav-item.active::after,
.header-c .nav .nav-item:hover::after{
    width: 100%;
    left: 0;
}
/* 公司介绍banner部分 */
.banner {
    
    padding-top: 80px;
    height: 180px;
    background-color: #F7F8F9; 
}
.banner-c {
    position: relative;
    width: 1200px;
    height: 100%;
    margin: 0 auto; 
}
.banner-c .banner-title {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100%;
    height: 58px;
    margin: auto; 
    z-index: 0;
}
.banner-c .banner-title h2 {
    font-size: 32px;
    color: #181818;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    margin-bottom: 12px; 
}
.banner-c .banner-title p {
    font-size: 14px;
    color: #c3c3c3;
    line-height: 1;
    text-align: center; 
}
/* 标题样式 */
.caption{
    display: inline-block;
    font-size: 24px;
    margin-right: 16px;
    font-weight: 600;
}
.caption + span{
    font-size: 14px;
    color:  #c3c3c3;
    vertical-align: text-bottom;
}
/* 案例列表 导航样式 */
.case-nav{
    position: absolute;
    right: 0;
    top: 0;
    width: 360px;    
}
.case-nav ul{
    height: 30px;
    margin-right: -20px;
}
.case-nav a{
    float: left;
    width: 75px;
    height: 100%;
    line-height: 30px;
    text-align: center;
    margin-right: 20px;
    color: #858585;
}
.case-nav a.active{
    color: #fff;
    background-color: #0F73D8;
}
.case-nav a:hover{
    color: #fff;
    background-color: #0F73D8;
}
/* 案例列表样式 */
.case-list{
    overflow: hidden;
}
.case-list .case-item{
    float: left;
    width: 30%;
    height: 293px;
    border: 1px solid #eee; 
    margin-bottom: 26px;
    box-sizing: border-box;
    margin-right: 5%;
    list-style: none;
    visibility: hidden;
}
.case-list .case-item:nth-child(3n){
    margin-right: 0;
}
.case-list .case-item a{
    position: relative;
    display: block;
    height: 215px;
    /* background-repeat: no-repeat; */
    overflow: hidden;
    /* background-size: 100% 100%; */
    /* background-size: cover; */
    /* background-position: center; */
    
}
.case-list .case-item .case-item-img{
    width: 100%;
    height: 100%;
    transition: all .4s ease;
}
.case-list .case-item a::after{
    display: block;
    content:'描述信息';
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 70px;
    font-size: 14px;
    color: #fff;
    background-color: rgba(15,115,216,.7);
    transform: translateY(70px);
    transition: all ease 0.4s;
}
.case-list .case-item:hover a::after{
    transform: translateY(0)
}
.case-list .case-item:hover .case-item-img{
    transform: scale(1.08);
}
.case-list .case-item .case-name{
    font-size: 16px;
    font-weight: 600;
    margin-top: 20px;
    text-align: center;
}
.case-list .case-item .case-profession{
    font-size: 14px;
    line-height: 32px;
    text-align: center;
    color: #b3b3b3;
}
/* 底部样式 */
.footer .contact{
    background-color: #353C46;
    overflow: hidden;
}
.contact-c{
    width: 1200px;
    height: 100%;
    margin: 0 auto;
}
.contact-c .contact-us{
    margin-top: 64px;
}
.contact-c .contact-us .caption{
    color: #fff;
}
.contact-c .contact-us .caption + span{
    color: #9EA0A3;
}
.contact-c .contact-us .contact-info{
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    /* height: 166px; */
    margin-top: 64px;
    margin-bottom: 95px;
}
.contact-c .contact-us .contact-info li{
    visibility: hidden;
}
.contact-c .contact-us .contact-info p{
    font-size: 15px;
    line-height: 28px;
    color: #9EA0A3;
}
.contact-c .contact-us .contact-info .logo-f{
    width: 110px;
    height: 33px;
    background: url('../img/logo_foot.png') no-repeat bottom;
}
.contact-c .contact-us .contact-info .logo-title{
    font-size: 16px;
    line-height: 24px;
}
.footer .footer-copyright {
    background-color: #283039;
}
.footer-copyright-c{
    width: 1200px;
    margin: 0 auto;
}
.footer-copyright-c .copyright{
    font-size: 14px;
    line-height: 58px;
    color: #959595;
}